Ventilator



Aug. 30, 1927.

A. MATTHIESSEN VENTILATOR Filed May 6, 1925 5 4 Tm M4T7w ssm INVENTOR ATTORNEY Patented Au 30, 1927.

PATENT OFFICE.

.Amron ua'r'rnmssau, or OAKLAND, canrromr'm.

VENTILATOR.

Application" fled Kay 6 My invention is an improvement-in window ventilators adapted to be lnsertedabove an upper sash and is used in comb1- nation with' an extensible. fly-screen in order to accommodate windows of different Widths.

An object of my invention is to-provide.-

an additional extending canopy or covering for the opening in the upper sash so that .rain water willbe deflected to prevent its blowing through the upperscreen.

- The deviceis positioned in the window with The canopy device to be placed above the upper sash of a'w indow is made of two sections which. telescope together and have attached thereto a telescoping fly-screen.

the fly-screen in alignment with the sash and with the canopy part extending outward to prevent rain from entering above the sash.

My invention will be more readily understood from the following description and drawings in which Figure 1 1s a vertical section through a sliding sash window, showing my screen canopy in place.

Figure 2 is -an outside elevation of the screened canopy, showing the. telescopic construction of the canopy.

Figure 3 is a plan view of the device.

Figure 4' is an end view of the device, and

Figure 5 is a. section along the line 5-5 of Figure 2. j

My window ventilators are adapted, to be used with either single or double sash windows. The manner of-installirig is shown inFi re 1 in which a window frame A has a sliding sash such as a lowersash B and an upper sash C of the'usual'type. The ca of the frame is indicated by -the letter and the sill by the letter E. A ventilating canopy 1 is mounted between the topof the upper sash and the cap D ofthe frame.

The canopy 1 is constructed as follows The canopy cover 3 is formed of'sheet metal bent into a curve and arranged to telescope.

Y Each section is substantially the same and has ends 4 adapted to abut the sides of the window'frame, these ends having their vertical edge bent outward to form a short connecting strip 5 and a flange 6 bent towards the front or outside of the canopy. Figure 2 shows the sash guide rails removed from the frame D for clarity. This is to interlock with the screen as will be hereafter described. The sections 3 of the 1925. Serial m. 88,888.

canopy cover are made on the same curve as shown in Figures 1', ,4 and 5 and each is provided with a beading 7 at the lower edge,

and a curled bead 8 at their upper edge.

The lower bead is turned inward. and the upper bead is shown turned outward. In

this manner the two sections telescope, .the beads forming guideways at the top and bottom, thus one section overlaps the other as they are telescoped together-or extended to fit between the franie at different widths of sash or windows. In Figure 2 the right hand part ofthe canopy is shown overlapping the left hand part.

-The window screen is also of the telescoping I type, having substantially similar frames 9, with a screen mesh 10 secured in each frame. This mesh may be fastened in any suitable manner, that indicated being by small bentflanges 11, which are welded or soldered to the frame of the screen, and are bent over'the screen to secure it in posi tion. 1 If desired the screen may be directly soldered or otherwise secured to the frame.

The telescoping feature of the screens may be made after any desired fashion, that shown indicates the outer screen frame having a return flange 12 along its upper edge in Figure 5 and the lower edge of the canopy having. a channel 13. .The flange and channel form slideways for the upper edge 14 of the inner screen and for the V lower edge 9 of the inner screen, as clearly shown in Figure 5. The channel 13 also receives the lower edge 15 of the outer screen. Each end of each screen frame has .a reversed bent bead 16, formed by an outwardly extending side 17 from the main portion of the frame, a reversed bent section 18 and an inwardly turned flange 19, as

shown in Figure 3. This is to engage and form a sliding fit, with the stri 5 and flange 6 of the canopy, as indicate in Figure 3.

The manner bf assembly and use of my screen canopy is as follows :The canopy sections being formed of sheet metal may be shaped as above described, and telescoped to form a tight fit. The screen is adjusted to slidevertically on the ends of the canopy sections so that the reversed bent head 16 -will slide down over the, flange 6' of the canopy sections. The. canopy and the screen part may then be telescoped together or pulled apart to suit different widths of windew and inserted between the cap of thewindow frame and the top of the upper sash, as shown in Figure 1.

The canopy 1 may be used as shown in Figure 1, and if desired merely for ventilation purposes. a similar canopy can be placed at the bottom of the window under the lower sash, and preferably facing upwardly on the inside. It ismanifest that if it is desired to conduct hot air out of a room, it would be desirable to reverse the directions of the canopies. As these are readily removable and insertable in any sliding sash type of window, they may be used for a variety of purposes.

My invention can be considerably modified in structural formation, in details and in material to suit especial requirements and different windows, without departing from the spirit thereof.

Having described. my invention what I claim is 1. A device ofthe type described com prising a sectional canopy adapted to extend outside of a window, a sectional screen carried by said canopy, beads carried by the canopy sections and being receivable in the grooves of. a window. said screen sections having reversed beads on their opposite ends insertable vertically over the beads on the ends of the canopy sections.

2. A device of the type described comprising a sectional canopy adapted to extend outside of a window, a sectional screen carried by said canopy, beads carried by the canopy sections and being, receivable in the grooves of a window, said screen sections having reversed beads on their opposite ends insertablevvertically over the beads on the ends of the canopy sections, said canopy sections having interlocking longitudinal beads.

3. In a device of the type described, a canopy having vertical beads at its opposite ends adapted to engage in the grooves of a window, and a screen having reversed beads on its opposite ends and receivable on the beadsof said canopy.

In testimony whereof I afiix my signature.

ANTON MATTHIESSEN, 

